Title:
A method for producing colored ceramics by colloidal dispersion and subsequent conventional pressurization techniques.
Document Type and Number:
Japanese Patent JP6322586
Kind Code:
B2
Abstract:
A colored ceramic powder is produced from a mixture of coloring solutions consisting of metallic salts that are introduced to a ceramic slurry and subsequently dried. The coloring solution may comprise for example of chosen metallic salts, a solvent, an organic solvent such as derivatives of propylene oxides, an acid and a possible binder. Once all the constituents are thoroughly mixed to a homogeneous state, the slip is dried to a powder form, which spray drying equipment can be used. The dried powder can then be subjected to an isostatic or biaxial press manufacturing process to create a green state ceramic body. Once pressed, the ceramic body can be subjected to a sintering process. After final sinter, the resulting ceramic body possesses an innate color that is homogenous throughout its composition. The method is especially useful for coloring zirconia dental restorations.
Inventors:
Carden, Robin, A.
Application Number:
JP2014559966A
Publication Date:
May 09, 2018
Filing Date:
February 27, 2013
Export Citation:
Assignee:
James R. Glidewell Dental Ceramics, Incorporated
International Classes:
B28B1/26; A61C13/083; A61K6/027; C04B35/622
Domestic Patent References:
| JP6040840A | ||||
| JP3265566A | ||||
| JP2004286573A | ||||
| JP3504846A | ||||
| JP2004527280A | ||||
| JP2007314536A | ||||
| JP2008513094A |
Foreign References:
| US20110151411 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Norio Omori
Mami Hino
Yasuhito Suzuki
Norio Omori
Mami Hino
Yasuhito Suzuki